336 SYLVA AMERICANA. 



until March or April in their husk, after which they may be 

 sown. 



Larix. This genus requires a moist, cool loam in a shaded 

 situation. The seeds may be sown in November, or kept in 

 the cones until March or April and then be sown. 



Lauras. This genus requires a soil composed of sand, peat 

 and loam. The seeds should be sown at the period of their 

 maturity. 



Liquidambar. This genus will flourish best in a sandy loam, 

 but will thrive in most kinds of soils of an intermediate quality 

 between moisture and dryness. The seeds should be sown in 

 the spring in pots or boxes of light earth ; to be shaded during 

 the summer, and protected from severe frosts in the winter, may 

 be propagated also by layers. 



Lyriodendron. The seeds of this genus should be sown at 

 their maturity in a sandy loam. 



Magnolia. The seeds of this genus should be sown, as soon 

 as ripe, in pots or boxes filled with a mixture of loam and peat, 

 and plunge them into an old hot bed of tanner's bark : they may 

 also be propagated by layers. 



Olea. The seeds of this tree should be sown as soon as they 

 have matured in a sandy peat. 



Pinus. All the fir and pine tribes affect siliceous, sandy soils, 

 but they will flourish on rocky and comparatively barren ones, 

 for which they are peculiarly adapted. The seeds should be 

 sown in March or April, and should not be taken out of the cones 

 until the time of sowing arrives. 



Plat anus. This genus prefers moist loam, but free from 

 stagnant moisture. The seeds should be sown immediately after 

 they are ripe. 



Quercus. A rich loam, with a clayey sub-soil, brings the oak 

 to the greatest perfection ; but it may be profitably cultivated on 

 almost every description of soil, except boggy or peat. They 

 should be sown in November ; or if deferred till spring, lay them 

 upon a cool, dry floor, to prevent their vegetating. 



Robinia. This genus will grow in almost any soil, but attains 



